This topic is very broad...
which major are you interested in?
I don't really have experience with canadian colleges.. And I believe their college systems are quite similar..
Some of my canadian friends come to US for college because some US ones are more well-known internationally.
If you are a Canada resident, you should probably expect to pay more tuition at a US university.
Besides academics, my only advice is to pick a big city with sufficient-sized chinatown, unless you're good at cooking :)
You might want to consider the weather too.. but I think Canadians are usually okay with the cold weather of US East coast...